Wikileaks has abruptly canceled a much-anticipated announcement on Tuesday, according to NBC News. The announcement had been expected to be founder Julian Assange’s long-promised document dump on Hillary Clinton.

NBC’s Jesse Rodriguez reported that the Tuesday announcement — which was to come from the balcony of London’s Ecuadorian Embassy, where Assange has sought sanctuary for years – was canceled due to “security concerns”.

Due to security concerns at the Ecuadorian Embassy, Julian Assange’s balcony announcement on Tues has been cancelled, per @wikileaks

Assange appeared on Fox News last month, repeating his assertion that Wikileaks has damaging documents on Clinton and suggested WikiLeaks may soon release “teasers”. More than three weeks later, that release has yet to take place.

Clinton’s more fervent opponents have hoped for weeks that the promised document dump would be an “October surprise” – damaging and revelatory emails or the like — and inflict a mortal wound on her campaign. There’s no evidence however that such damaging information even exists.

It was only this summer that Assange’s group leaked thousands of embarrassing emails from the Democratic National Committee which showed their disdain for Bernie Sanders’ insurgent campaign for the Democratic presidential nomination. The uproar over the disclosures forced DNC Chairwoman Debbie Wasserman-Schultz to resign in disgrace on the eve of the Democratic National Convention.

It’s unclear if Stone was aware that Wikileaks, according to NBC News, has canceled their Tuesday announcement.

Assange and his supporters have long claimed that his personal safety is at risk due to the danger he (supposedly) represents to Clinton’s presidential ambitions. In August, a video reemerged of liberal commentator Bob Beckel who suggested in a TV appearance that Assange be murdered, proclaiming that someone should “shoot the son of a bitch!”

Assange himself has also recently hinted publicly that low-level DNC staffer Seth Rich, who was murdered this summer in Washington DC, had been the source for Wikileaks’ document dump on the DNC. And that Rich’s alleged role in the leaks was linked to his death.

There has been no evidence linking Rich to the leak and no evidence that his murder was anything more than a botched robbery.

Nonetheless, the cancellation of Tuesday’s Wikileaks announcement already has anti-Clinton conspiracy theorists working up a frantic stew of speculation.